I don't think arce will beat donaire,i think he'll get stopped,he gets cut easily and not just that,donaire is just better,,,marquez/viloria is a 50/50 fight,viloria looked good at beating segura although I think marquez is faster and moves better,i think it will be a close fight,as far as marquez/pac,i think marquez is the better boxer but this is one more year,older and probably slower,so who knows who wins that one,i've always felt marquez stays in there with pac because of his boxing because if he didn't have skills he would get ko'd he's too small to be fighting above 140